Delphinium need a long cold period ,, Ironweed I have never had any luck with at all , etc (i don't know .
The others I would say go for planting ,
Salvia usually come up when their ready ,
Goldenrod about the same , nearly a sow any time
Perennial Hollyhock are a second season bloom , Rarely a first year bloom , slow often times to germinate . very slow ..
I had some older Baptisia seeds that were supposedly suppose to be stratified , they grew anyway ,
Rubeckia , as to what type they are , about anytime
Clover , can be slow to appear other times it poofs and it's there ,, another that is about anytime , they will appear when their ready
Except for ironweed I have grown all these ,, still have most ,,